Controller for a computer



FIG. 1 is a front perspective view of a controller for a computer showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings are included for the purpose of illustrating unclaimed portions of the controller for a computer and form no part of the claimed design. 

The ornamental design for a controller for a computer, as shown and described. 